CVE-2026-107281: CWE-346: Origin Validation Error in AsyncHttpClient async-http-client
Description
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, the HTTP/1.1 connection-pool key excludes the authenticated principal for connection-oriented NTLM and Negotiate authentication. A pooled socket authenticated for one request can be reused by a request carrying another principal, and the server executes that later request as the first identity. Basic and Digest are not affected because they authenticate each request. This issue is fixed in versions 3.0.13 and 2.16.1.
CVSS v4.0
Score 7.6high
Affected software
AsyncHttpClient
async-http-client
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-07T15:53:23.585Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac6bac72cdf04f65680ca61
Added to database: 10/07/2026, 21:33:59 UTC
Last updated: 10/07/2026, 21:33:59 UTC
Views: 1
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